Nancy and Bill are auto mechanics. Nancy takes 4 hours to replace a clutch and 2 hours to replace a set of brakes. Bill takes 6 hours to replace a clutch and 2 hours to replace a set of brakes. State whether anyone has an absolute advantage at either task and, for each task, identify who has a comparative advantage.
a) The opportunity cost of a set of brakes for Nancy is 0.50 correct of a clutch replacement.
b) The opportunity cost of a set of brakes for Bill is 0.33 correct of a clutch replacement.
c) Nancy correct has an absolute advantage in clutch replacement.
d) Neither correct has an absolute advantage in brake replacement.
e) Nancy correct has a comparative advantage in clutch replacement.
f) Bill correct has a comparative advantage in brake replacement.

Suppose an economy consists of three sectors: energy (e), manufacturing (m), and agriculture (a). sector e sells 70% of its output to m and 30% to a. sector m sells 30% of its output to e, 50% to a, and retains the rest. sector a sells 15% of its output to e, 30% to m, and retains the rest.

Now ray has had the tires for two months and he notices that the tread has started to pull away from the tire. he has already contacted the place who sold the tires and calmly and accurately explained the problem. they didn’t him because they no longer carry that tire. so he talked with the manager and he still did not get the tire replaced. his consumer rights are being violated. pretend you are ray and write a letter to the company’s headquarters. here are some points to keep in mind when writing the letter: include your name, address, and account number, if appropriate. describe your purchase (name of product, serial numbers, date and location of purchase). state the problem and give the history of how you tried to resolve the problem. ask for a specific action. include how you can be reached.

Precision aviation had a profit margin of 6.25%, a total assets turnover of 1.5, and an equity multiplier of 1.8. what was the firm's roe? a. 15.23%b. 16.03%c. 16.88%d. 17.72%e. 18.60%